20120203: RE: new subnet added to UWWI firewall guidance

An update:

We’ve decided to not proceed with moving this DC across networks as the data center for this DC doesn’t have 1Gb network capabilities available. Instead, we’ll closely monitor network utilization for the remaining lifetime of this DC and address the network capacity issue on this particular DC when we replace it (which will be sometime in the next year). Current network utilization over the past week is substantially reduced (was temporarily elevated to capacity during the period that UW Exchange experienced issues).

The firewall guidance document has been updated to remove the network we had planned on moving to. A careful reader noted a mistake in that document, and that mistake has also been addressed.

If you have a firewall or network filters, you may need to adjust them (see link below).

When:

An existing DC will be moved to a new network sometime after Friday, February 3.

More info:

Mace.netid.washington.edu will move to 172.22.15.64/27 to facilitate upgrading its network connection from 100Mb to 1Gb. Mace is experiencing high network utilization near its existing network capacity from the existing UW Exchange issues, so this is a preventative measure for future high load situations. After Mace has been moved, the firewall guidance doc will be revised to remove Mace’s old network.